linux-kernel - Re: [PATCH 19/43] x86/entry/64: Remove the SYSENTER stack canary

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Message-ID: <alpine.DEB.2.20.1711241523470.1757@nanos>
Date:   Fri, 24 Nov 2017 15:23:56 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Ingo Molnar <mingo@...nel.org>
cc:     linux-kernel@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...capital.net>,
        "H . Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Borislav Petkov <bp@...en8.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 19/43] x86/entry/64: Remove the SYSENTER stack canary

On Fri, 24 Nov 2017, Ingo Molnar wrote:

> From: Andy Lutomirski <luto@...nel.org>
> 
> Now that the SYSENTER stack has a guard page, there's no need for a
> canary to detect overflow after the fact.

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>